Jump to content

Oil Press Gauge?

javeytia

By javeytia
in Ask A GM Technician

Recommended Posts

javeytia New Member

javeytia

Posted
Posted

Hello im trying to get some info or see if anyone has gone threw this problem that i have. My 05 tahoe recently started reading zero on my oil press. gauge. Oil reads good on my dip stick, but before i take it to get check and spend some money, im trying to see if anyone has gone threw this? have had no problem starting truck and driving it, but i'm kind of scare of driving it without and explanation of what could happen. Im wondering if it could be the sensing unit or cluster? and if it is. See if anyone has done something that worked for them. any help would be great.

Alljackedup408 Enthusiast

Alljackedup408

Posted
Posted

you will need a GM tech 2 to help with this. My guess is its the oil pressure sensor/switch. But it could also be a bad PCM or an intermitten connection somewhere.. or the cluster could be bad. Theres a number of things lol. Best bet is to take it to the dealer... i know its expensive but... unless you have the proper tools.. you cant really do much.

 

To Really find it.. you need the tech 2 to activate that gauge on the cluster.. and to see if the gauge moves back and forth when commanded. If it doesnt move when commanded.. then right there it tells you a bad gauge or no good connection to it. But if it moved.. then either the switch or pcm is bad.

 

hope this answered your question.

Draenor Senior Enthusiast

Draenor

Posted
Posted

For one, oil level and oil pressure two different animals.You can have plenty of oil and no pressure, but don't fear.

The clusters have been know to go bad on the year/model you have. This is probably the case. The only way you could have bad pressure is a bearing clearance failure or sludge buildup. If you have been doing the scheduled maintenance or taking care of the vehicle you should be fine. As Brian (holy huge sig) said a Tech2 could verify the gauge. Otherwise, you would have to pull the sensor, and take a mechanical reading. This will either prove that the gauge or sensor is faulty.

If you have any doubts, get it towed. No sense taking the risk of spinning a bearing.

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.4k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,840
    Total Members
    8,960
    Most Online
    appletrav
    Newest Member
    appletrav
    Joined

  • Who's Online   5 Members, 0 Anonymous, 655 Guests (See full list)

  • Latest Articles

  • Posts

    • Core-Lokt
      Wiring Help, Please

      By Core-Lokt · Posted

      Thanks; I looked there a few minutes, and I think I can find something. I really never looked there, as I thought it was stuff like PTO/aftermarket bodies/accessories like snow plows.
    • newdude
      2 speed transfer case optional now?

      By newdude · Posted

      This is a 1/2 ton thing ONLY.  All HDs 2020-2026 have the two speed transfer case, with Autotrac as an option.     1/2 tons 2019-2026, regular 4x4s come with a single speed case (no 4LO!), and trucks with Z71 ordered, or all Trail Boss trucks come with the 2 speed case.  2 speed case is also an option on WT, and is also standard on High Country.  
    • newdude
      Different requirements for oil filters?

      By newdude · Posted

      2013 5.3 still to this day calls for the PF48 filter.  Which as a 15psi bypass pressure.     There is a TSB, 17-NA-157 that talks about the PF-63 and PF-64 filters which have a higher bypass rating of 22psi.    TSB HERE - temp.xml   "Beginning in 2012, the oil pumps began to regulate main gallery feedback instead of pump out pressure. This means that the oil pump now does not begin to regulate until pressure is built up to the main gallery. This change reduces the amount of time it takes to provide oil to the engine bearing and lifters during extreme cold start conditions.  Main gallery feedback oil pump control systems are present on the following engine families which use Spin-on oil filters: Small Gas Engine (SGE), Large Gas Engine (LGE), High Feature (HFV6) Gen2 and Small Block Gen5 gasoline engines. These engines with the main gallery feedback oil pump control systems are factory built with an ACDelco® oil filters"   It also calls out what engines use those filters.  The gen 4 small blocks were not on that list (LMG, LC9, L9H, L92, L94, L20, L96).  Gen 5 small blocks use the higher pressure filter.          That all said...   Your 7045 Napa filter is the PF63 equivalent, with 22psi bypass.  You are already using the higher bypass pressure filter.  You CAN keep using it, you don't technically have to use it though.  
    • Grumpy Bear
      Different requirements for oil filters?

      By Grumpy Bear · Posted

      Do you know WHY the filter relief setting was increased to 22 psig?    When the new system goes into the second stage the pump volume ramps up considerably. It was found that the 15 psi filter bypass setting put the filter in bypass on a warm engine when the second stage was activated. Raising the filter bypass setting forced the filter to do what it designed to do. Filter. Preventing debris from circulating during high load, high rpm operation.    So next question is how did GM find this out? VLOM/lifter failures and a deep dive by Melling Corp.    Last question. Is it required? Look at it like this; a motor may be equipped with a rev limiter. But it only works if the set point in reached. That 22 psig setting only matters if the pressure differential across the filter media exceeds 15 psig during normal warm operation. Second stage kicks in around 3000-3500 rpm.    I can't answer your question because I don't know you and how you use the truck. But I think there is enough information here to let you decide for yourself. 😉
    • Coastie05
      give me some tips to make my truck look better

      By Coastie05 · Posted

      Go back to OEM wheels. 

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...